Continuous centrifugal tube casting apparatus with dry mold and

Details Continuous centrifugal tube casting apparatus with dry mold and Continuous centrifugal tube casting apparatus with dry mold and

1971-09-15

1976-01-06

Annear, R. Spencer

Metal founding

Combined

164298, B22D 1302

Patent

active

039305325

ABSTRACT:
The invention pertains to the continuous centrifugal casting of metallic and non-metallic tube onto the I.D. surface of a rotating hollow cylinder which acts as the initial mold of the tube forming operation. Molten material, to be cast to tube, is continually introduced into the entrance end of the centrifuge and the solidified centrifugally cast tube is continuously extracted from the exit end. The process is greatly enhanced as to casting rates and ease of extraction of the solid cast tube by the techniques of utilizing a vacuum on the interior of the tube, in its molten and solid state, and/or a positive pressure (above ambient) external to the solidified or partially solidified tube at the exit end of the centrifugal casting machine.

REFERENCES:
patent: 1377372 (1921-05-01), Thompson
patent: 1444953 (1923-02-01), Crane
patent: 1527729 (1925-02-01), Dunajeff
patent: 2707813 (1955-05-01), Dickson
patent: 3367400 (1968-02-01), Hathorn
patent: 3416591 (1968-12-01), Babel et al.

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